MECHANISMS OF SHAFT FRICTION IN SAND FROM INSTRUMENTED PILE TESTS. DISCUSSION AND CLOSURE

A discussion of a paper with the aforementioned title by Lehane, Jardine, Bond, and Frank, published in this journal (Volume 119, Number 3, January 1993), is presented. The discussion focuses on the extrapolation of data from small-scale tests to full-scale conditions. Hobbs warns against the extrapolation of such data and suggests validation at full-scale or close proximity whenever possible. Discussion is followed by closure from the authors.